Peaches Geldof apologises for Ian Watkins sex abuse tweet

Geldof may face criminal charges for identifying on Twitter two women whose babies were abused by Lostprophets singer

Peaches Geldof: identifying victims of sexual offences is a crime under the Sexual Offences Act and carries a fine of up to £5,000. Photograph: Michael Bowles / Rex Features/Michael Bowles/Rex Features

On Friday it was revealed that the names of the defendants in the case had been mistakenly included on the court service's listing site.

An HM Courts & Tribunals Service spokesman said: "We apologise that the names of the defendants in this case were mistakenly included on our court listing site. The names were quickly removed from the site, and action has been taken to ensure this does not happen again."

The mothers of the two infants, a boy and a girl, are subject to lifelong anonymity orders to prevent the identities of their children becoming public.

On Friday, Geldof explained that the offending tweets had been deleted and that she had learned a lesson from the incident. But in a series of tweets she argued that the identity of the women should be revealed.

"The question of wether [sic] or not to give anonymity to criminals in cases like this will go on forever. However these women and Watkins will be gettings [sic] three-meals a day, a double bed, cable TV etc – all funded by the tax payer alongside not being named apparently. It makes me sad. I deleted my – tweets however and apologise for any offence caused."

Identifying victims of sexual offences is a crime under the Sexual Offences Act and carries a fine of up to £5,000, but publishers who flout the law are often ordered to pay a further sum in compensation to the victim.

South Wales police, whose detectives led the Watkins investigation, codenamed Operation Globe, said it was investigating Geldof's deleted posts alongside lawyers from the Crown Prosecution Service.

Detective Chief Inspector Peter Doyle, senior investigating officer from the force, said: "We are aware that the names of Ian Watkins's co-defendants have been published on social media channels. Clearly, there is strong public feeling about this case and many people are using social media forums to talk about the issues involved.

"We are currently in consultation with the Crown Prosecution Service regarding the matter and will take action if appropriate.

"Our primary objective as an organisation remains the safeguarding of vulnerable people and children. Victims of sexual abuse have a right to anonymity in order to protect their future welfare and we urge those discussing the issues raised online to be careful about using information that identifies victims in cases like this."A Crown Prosecution ServicePS spokesman confirmed it was involved in the investigation.

The CPS said in a statement: "Anonymity for victims of sexual offences is a vital component of the criminal justice process. The CPS is liaising with South Wales police in relation to their investigation into allegations that the names of two women convicted alongside Ian Watkins have been placed in the public domain, contrary to legislation that protects the identity of victims by banning the publicising of information which would identify them."